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Reduction of C60 with the alkali metals A = K, Rb and Cs in tetrahydrofuran as a solvent and addition of [2.2.2]crypt , dimethylformamide and cyclohexane lead to the formation of crystalline samples of [A([2.2.2]crypt)]2[C60](C6H12)2(C3H7NO)2(C4H8O)2 (A = K, Rb, Cs) 1a, 1b and 1c as major fractions. As a by-product of compound 1a, a second minor fraction containing [K([2.2.2]crypt)]2[C60](C3H7NO)4 2 was obtained. The structures of the four compounds have been determined by single-crystaldoi:10.1515/znb-2004-11-1231 fatcat:s26be7nitfexbfjuchq3h76dwy